AAS 201st Meeting, January, 2003
Session 19. Interferometer
Poster, Monday, January 6, 2003, 9:20am-6:30pm, Exhibit Hall AB

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[19.03] Amplitude Control: Closing the Loop

M. G. Littman, M. Carr, J. Kasdin, R. Vanderbei, D. Spergel (Princeton University)

We are using a compensated zero-path-difference Michelson interferometer to control optical amplitude and phase for application to the correction of optical errors in telescopes. Two spatial light modulators are used in place of the usual mirrors in the Michelson. The spatial light modulators are 128x128 pixel arrays from Boulder Nonlinear Systems. We have previously shown how this device can be used for amplitude control using laser and white-light sources. In this study we will present results of closing the loop around this device with the purpose of making an incident optical field uniform in amplitude.

This work is supported by NASA and Princeton University.

The author(s) of this abstract have provided an email address for comments about the abstract: mlittman@princeton.edu

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© 2002. The American Astronomical Soceity.